package org.apache.maven.repository.legacy;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Map;

import org.apache.maven.wagon.ConnectionException;
import org.apache.maven.wagon.InputData;
import org.apache.maven.wagon.OutputData;
import org.apache.maven.wagon.ResourceDoesNotExistException;
import org.apache.maven.wagon.StreamWagon;
import org.apache.maven.wagon.TransferFailedException;
import org.apache.maven.wagon.Wagon;
import org.apache.maven.wagon.authentication.AuthenticationException;
import org.apache.maven.wagon.authorization.AuthorizationException;
import org.apache.maven.wagon.resource.Resource;
import org.codehaus.plexus.component.annotations.Component;

@Component(role = Wagon.class,
    hint = "string")
public class StringWagon extends StreamWagon {
  private Map<String, String> expectedContent = new HashMap<String, String>();

  public void addExpectedContent(String resourceName, String expectedContent) {
    this.expectedContent.put(resourceName, expectedContent);
  }

  public String[] getSupportedProtocols() {
    return new String[] { "string" };
  }

  @Override
  public void closeConnection() throws ConnectionException {
  }

  @Override
  public void fillInputData(InputData inputData)
      throws TransferFailedException, ResourceDoesNotExistException, AuthorizationException {
    Resource resource = inputData.getResource();

    String content = expectedContent.get(resource.getName());

    if (content != null) {
      resource.setContentLength(content.length());
      resource.setLastModified(System.currentTimeMillis());

      try {
        inputData.setInputStream(new ByteArrayInputStream(content.getBytes("UTF-8")));
      } catch (UnsupportedEncodingException e) {
        throw new Error("broken JVM", e);
      }
    } else {
      throw new ResourceDoesNotExistException("No content provided for " + resource.getName());
    }
  }

  @Override
  public void fillOutputData(OutputData outputData) throws TransferFailedException {
    outputData.setOutputStream(new ByteArrayOutputStream());
  }

  @Override
  protected void openConnectionInternal() throws ConnectionException, AuthenticationException {
  }

  public void clearExpectedContent() {
    expectedContent.clear();
  }
}
